Internet # 203626510

Store SKU # 604128

4 in. x 2 ft. Semi-Rigid Aluminum Duct with Collars

$7.29 /each

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Product Overview

The 4 in. x 2 ft. UL Listed and Marked Semi-Rigid Aluminum Duct is ideal when all aluminum ducts is required by code in some gas and electric dryer applications. New manufacturing technology incorporated into this duct allows for easy rotation. The thicker material provides more durability during handling by the contractor.

  • Noncombustible
  • Maximum operating temperature of 435°F
  • UL listed and marked
  • 2 pre-attached collars allow for ease of installation



Product Depth (in.) 
Product Diameter (in.) 
4.0 in 
Product Height (in.) 
Product Length (in.) 
Product Width (in.) 


Maximum air flow (CFM) 

Warranty / Certifications

Certifications and Listings 
1-UL Listed 

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Customer Questions & Answers

1 Question2 Answers

Customer Questions & Answers

4 in. x 2 ft. Semi-Rigid Aluminum Duct with Collars
4 in. x 2 ft. Semi-Rigid Aluminum Duct with Collars

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2 answers

Is this product acceptable for hoods

This question is from 4 in. x 2 ft. Semi-Rigid Aluminum Duct with Collars
Asked by
Baton Rouge, Louisiana
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July 23, 2015
The kitchen contractor used the 4 in x 8 ft non-combustible For General Venting Only Duct, for a microwave/ hood combination. Is this acceptable for hoods. The length of the flexible duct is very little. It connects into the larger straight duct which discharges outside. My only concern is grease building up in the ridges from excess frying. I don't cook much, but I also want to make sure this flexible duct is UL listed for small residential hood uses.
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Answers (2)

Asked by
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Home Improvement Profile: Other
July 28, 2015
The piece that was installed did not have the collar and was not on your website, however, it looks just like the flexible duct with the collar. I did not see where UL181 was approved specifically for hoods, it was more concerned with temperature. Can you please send me the information you have from UL 181 and I will greatly appreciate it.
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July 27, 2015
This item is UL 181 listed and marked and can be used for venting a kitchen range hood
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Customer Reviews

Rated 2.4 out of 5 by 8 reviewers.
Rated 1.0 out of 5.0 by will not extend 4 foot Tried to pull to 4 foot and came apart !-- ok it you need only 2 to 3 feet. June 7, 2016
Rated 2.0 out of 5.0 by cheap but did the job ok. ends remove easily. They fall out. works for job intended, but nothing to write a review about. March 8, 2016
Rated 5.0 out of 5.0 by worked as it should mabe holed up better than plastic it replaced Bath fan exhauste hose was torn replaced plastic with this much better unit February 10, 2016
Rated 3.0 out of 5.0 by Not much I bought this because it was the only duct they sell. I didn't think it would work very well but had to have something. Had a very hard time getting it over the dryer vent and also over the outside vent. Some of it broke off. I did eventually get it on but don't expect it to last. Now I'm looking for the old style somewhere else. January 6, 2016
Rated 5.0 out of 5.0 by Good and sturdy I was skeptical of this type of duct but it is very strong and works as it should. December 29, 2015
Rated 1.0 out of 5.0 by I knew what I was getting Some of my company's stores use these very vents for installation, but we were out of them, so I paid 3x our cost ($7) at HD, because I needed one asap. These ducts will work fine if there is a fairly straight line-up of a dryer to the vent port. If it's offset (vertical and/or horizontal)? Forget it.....if you have to twist/shape/bend it enough....it will break open and become immediately worthless. I took it back to HD and they didn't bat an eye at issuing a refund, so I paid an extra few dollars to get an accordion type that made attaching it a breeze. My company pays $2 for these very same vents. HD charges $7. Bottom line? I wouldn't spend .50 cents to endure the hassle of installing one of these. But again, if it's a fairly straight line-up....no problem, as these would work just fine. October 27, 2015
Rated 1.0 out of 5.0 by Junk Both collars tore off with very minimal effort. Attempted to try an use it still, but it tore and continued like I was pulling a string. June 28, 2015
Rated 1.0 out of 5.0 by Garbage Exerted the usual pressure to connect the duct and the collar snapped off. I figured it HAD to have been defective, bought another and the exact same thing happened. It is hard to believe a product could be designed and built so poorly. September 21, 2014
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